By Keval Satra, Rajeev Kamalampet, Varenya Mehta, and Mahith Nadella Phosphate dosing systems are critical for corrosion control, and increasingly important under the mandate of Lead and Copper Rule Improvements. Phosphate-based chemical treatment is a proven strategy in drinking water systems for both corrosion control and sequestration of metals such as iron and manganese. The addition of phosphate plays a key role in helping water systems comply with drinking water regulatory standards.